An upset or overturn
- To upset or overturn as a vessel or any other human body
- overturn inadvertently
- To disturb or overturn, as a vessel or any other human anatomy.
- An upset or overturn.
1780 (transitive); 1792 (intransitive), a nautical word-of obscure beginning, maybe (as Skeat suggests) from Spanish capuzar "to sink because of the head," from cabo "head," from Latin caput (see capitulum). For good sense, compare French chavirer "to capsize, upset," faire capot "capsize;" verified
When a train is running round a curve the centrifugal force which comes into play tends to make its wheel-flanges press against the outer rail, or even to capsize it.